Does this mean I can change the colors to anything or...?
I went on a hiatus and forgot all my sylestian knowledge qwq
Here's the sylesti
https://www.sylestia.com/view/pets/?petid=6276793

This is a pb born from dyed parents, to prevent loosing the original coloration of a themme there is an option that appear on every themmed pets who were dyed or who were born from dyed, this will allow you to return it to it's true coloration. However in the case of pb with this issue that were created before that update (i think it was around 2018) nead to have the option trigered using a dye, so there is still some confusion especialy with the emperor dragon nixi. ^-^

it means you can restore its colours to those of the theme it's a pb of, since it's the descendant of pb pets that were dyed after the theme colour reversion/update feature was implemented. (this is also seen on pre-revamp theme pets of species that have been revamped)
Theme/PB dye reversion was first implemented as an option on the 30th of January 2019, alongside the lupora theme updates after their revamp.

(in this case, reverting his colours means he'd look like this:

since he's a pb cute witch nixi)

Thank you both ^^